New upstream version 18.08
[deb_dpdk.git] / drivers / net / ixgbe / ixgbe_pf.c
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 2010-2016 Intel Corporation
3  */
4
5 #include <stdio.h>
6 #include <errno.h>
7 #include <stdint.h>
8 #include <stdlib.h>
9 #include <unistd.h>
10 #include <stdarg.h>
11 #include <inttypes.h>
12
13 #include <rte_interrupts.h>
14 #include <rte_log.h>
15 #include <rte_debug.h>
16 #include <rte_eal.h>
17 #include <rte_ether.h>
18 #include <rte_ethdev_driver.h>
19 #include <rte_memcpy.h>
20 #include <rte_malloc.h>
21 #include <rte_random.h>
22
23 #include "base/ixgbe_common.h"
24 #include "ixgbe_ethdev.h"
25 #include "rte_pmd_ixgbe.h"
26
27 #define IXGBE_MAX_VFTA     (128)
28 #define IXGBE_VF_MSG_SIZE_DEFAULT 1
29 #define IXGBE_VF_GET_QUEUE_MSG_SIZE 5
30 #define IXGBE_ETHERTYPE_FLOW_CTRL 0x8808
31
32 static inline uint16_t
33 dev_num_vf(struct rte_eth_dev *eth_dev)
34 {
35         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
36
37         return pci_dev->max_vfs;
38 }
39
40 static inline
41 int ixgbe_vf_perm_addr_gen(struct rte_eth_dev *dev, uint16_t vf_num)
42 {
43         unsigned char vf_mac_addr[ETHER_ADDR_LEN];
44         struct ixgbe_vf_info *vfinfo =
45                 *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private);
46         uint16_t vfn;
47
48         for (vfn = 0; vfn < vf_num; vfn++) {
49                 eth_random_addr(vf_mac_addr);
50                 /* keep the random address as default */
51                 memcpy(vfinfo[vfn].vf_mac_addresses, vf_mac_addr,
52                            ETHER_ADDR_LEN);
53         }
54
55         return 0;
56 }
57
58 static inline int
59 ixgbe_mb_intr_setup(struct rte_eth_dev *dev)
60 {
61         struct ixgbe_interrupt *intr =
62                 IXGBE_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
63
64         intr->mask |= IXGBE_EICR_MAILBOX;
65
66         return 0;
67 }
68
69 void ixgbe_pf_host_init(struct rte_eth_dev *eth_dev)
70 {
71         struct ixgbe_vf_info **vfinfo =
72                 IXGBE_DEV_PRIVATE_TO_P_VFDATA(eth_dev->data->dev_private);
73         struct ixgbe_mirror_info *mirror_info =
74         IXGBE_DEV_PRIVATE_TO_PFDATA(eth_dev->data->dev_private);
75         struct ixgbe_uta_info *uta_info =
76         IXGBE_DEV_PRIVATE_TO_UTA(eth_dev->data->dev_private);
77         struct ixgbe_hw *hw =
78                 IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
79         uint16_t vf_num;
80         uint8_t nb_queue;
81
82         PMD_INIT_FUNC_TRACE();
83
84         RTE_ETH_DEV_SRIOV(eth_dev).active = 0;
85         vf_num = dev_num_vf(eth_dev);
86         if (vf_num == 0)
87                 return;
88
89         *vfinfo = rte_zmalloc("vf_info", sizeof(struct ixgbe_vf_info) * vf_num, 0);
90         if (*vfinfo == NULL)
91                 rte_panic("Cannot allocate memory for private VF data\n");
92
93         rte_eth_switch_domain_alloc(&(*vfinfo)->switch_domain_id);
94
95         memset(mirror_info, 0, sizeof(struct ixgbe_mirror_info));
96         memset(uta_info, 0, sizeof(struct ixgbe_uta_info));
97         hw->mac.mc_filter_type = 0;
98
99         if (vf_num >= ETH_32_POOLS) {
100                 nb_queue = 2;
101                 RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_64_POOLS;
102         } else if (vf_num >= ETH_16_POOLS) {
103                 nb_queue = 4;
104                 RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_32_POOLS;
105         } else {
106                 nb_queue = 8;
107                 RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_16_POOLS;
108         }
109
110         RTE_ETH_DEV_SRIOV(eth_dev).nb_q_per_pool = nb_queue;
111         RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx = vf_num;
112         RTE_ETH_DEV_SRIOV(eth_dev).def_pool_q_idx = (uint16_t)(vf_num * nb_queue);
113
114         ixgbe_vf_perm_addr_gen(eth_dev, vf_num);
115
116         /* init_mailbox_params */
117         hw->mbx.ops.init_params(hw);
118
119         /* set mb interrupt mask */
120         ixgbe_mb_intr_setup(eth_dev);
121 }
122
123 void ixgbe_pf_host_uninit(struct rte_eth_dev *eth_dev)
124 {
125         struct ixgbe_vf_info **vfinfo;
126         uint16_t vf_num;
127         int ret;
128
129         PMD_INIT_FUNC_TRACE();
130
131         RTE_ETH_DEV_SRIOV(eth_dev).active = 0;
132         RTE_ETH_DEV_SRIOV(eth_dev).nb_q_per_pool = 0;
133         RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx = 0;
134         RTE_ETH_DEV_SRIOV(eth_dev).def_pool_q_idx = 0;
135
136         vf_num = dev_num_vf(eth_dev);
137         if (vf_num == 0)
138                 return;
139
140         vfinfo = IXGBE_DEV_PRIVATE_TO_P_VFDATA(eth_dev->data->dev_private);
141         if (*vfinfo == NULL)
142                 return;
143
144         ret = rte_eth_switch_domain_free((*vfinfo)->switch_domain_id);
145         if (ret)
146                 PMD_INIT_LOG(WARNING, "failed to free switch domain: %d", ret);
147
148         rte_free(*vfinfo);
149         *vfinfo = NULL;
150 }
151
152 static void
153 ixgbe_add_tx_flow_control_drop_filter(struct rte_eth_dev *eth_dev)
154 {
155         struct ixgbe_hw *hw =
156                 IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
157         struct ixgbe_filter_info *filter_info =
158                 IXGBE_DEV_PRIVATE_TO_FILTER_INFO(eth_dev->data->dev_private);
159         uint16_t vf_num;
160         int i;
161         struct ixgbe_ethertype_filter ethertype_filter;
162
163         if (!hw->mac.ops.set_ethertype_anti_spoofing) {
164                 RTE_LOG(INFO, PMD, "ether type anti-spoofing is not"
165                         " supported.\n");
166                 return;
167         }
168
169         i = ixgbe_ethertype_filter_lookup(filter_info,
170                                           IXGBE_ETHERTYPE_FLOW_CTRL);
171         if (i >= 0) {
172                 RTE_LOG(ERR, PMD, "A ether type filter"
173                         " entity for flow control already exists!\n");
174                 return;
175         }
176
177         ethertype_filter.ethertype = IXGBE_ETHERTYPE_FLOW_CTRL;
178         ethertype_filter.etqf = IXGBE_ETQF_FILTER_EN |
179                                 IXGBE_ETQF_TX_ANTISPOOF |
180                                 IXGBE_ETHERTYPE_FLOW_CTRL;
181         ethertype_filter.etqs = 0;
182         ethertype_filter.conf = TRUE;
183         i = ixgbe_ethertype_filter_insert(filter_info,
184                                           &ethertype_filter);
185         if (i < 0) {
186                 RTE_LOG(ERR, PMD, "Cannot find an unused ether type filter"
187                         " entity for flow control.\n");
188                 return;
189         }
190
191         IXGBE_WRITE_REG(hw, IXGBE_ETQF(i),
192                         (IXGBE_ETQF_FILTER_EN |
193                         IXGBE_ETQF_TX_ANTISPOOF |
194                         IXGBE_ETHERTYPE_FLOW_CTRL));
195
196         vf_num = dev_num_vf(eth_dev);
197         for (i = 0; i < vf_num; i++)
198                 hw->mac.ops.set_ethertype_anti_spoofing(hw, true, i);
199 }
200
201 int ixgbe_pf_host_configure(struct rte_eth_dev *eth_dev)
202 {
203         uint32_t vtctl, fcrth;
204         uint32_t vfre_slot, vfre_offset;
205         uint16_t vf_num;
206         const uint8_t VFRE_SHIFT = 5;  /* VFRE 32 bits per slot */
207         const uint8_t VFRE_MASK = (uint8_t)((1U << VFRE_SHIFT) - 1);
208         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
209         uint32_t gpie, gcr_ext;
210         uint32_t vlanctrl;
211         int i;
212
213         vf_num = dev_num_vf(eth_dev);
214         if (vf_num == 0)
215                 return -1;
216
217         /* enable VMDq and set the default pool for PF */
218         vtctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL);
219         vtctl |= IXGBE_VMD_CTL_VMDQ_EN;
220         vtctl &= ~IXGBE_VT_CTL_POOL_MASK;
221         vtctl |= RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx
222                 << IXGBE_VT_CTL_POOL_SHIFT;
223         vtctl |= IXGBE_VT_CTL_REPLEN;
224         IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vtctl);
225
226         vfre_offset = vf_num & VFRE_MASK;
227         vfre_slot = (vf_num >> VFRE_SHIFT) > 0 ? 1 : 0;
228
229         /* Enable pools reserved to PF only */
230         IXGBE_WRITE_REG(hw, IXGBE_VFRE(vfre_slot), (~0U) << vfre_offset);
231         IXGBE_WRITE_REG(hw, IXGBE_VFRE(vfre_slot ^ 1), vfre_slot - 1);
232         IXGBE_WRITE_REG(hw, IXGBE_VFTE(vfre_slot), (~0U) << vfre_offset);
233         IXGBE_WRITE_REG(hw, IXGBE_VFTE(vfre_slot ^ 1), vfre_slot - 1);
234
235         /* PFDMA Tx General Switch Control Enables VMDQ loopback */
236         IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
237
238         /* clear VMDq map to perment rar 0 */
239         hw->mac.ops.clear_vmdq(hw, 0, IXGBE_CLEAR_VMDQ_ALL);
240
241         /* clear VMDq map to scan rar 127 */
242         IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(hw->mac.num_rar_entries), 0);
243         IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(hw->mac.num_rar_entries), 0);
244
245         /* set VMDq map to default PF pool */
246         hw->mac.ops.set_vmdq(hw, 0, RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx);
247
248         /*
249          * SW msut set GCR_EXT.VT_Mode the same as GPIE.VT_Mode
250          */
251         gcr_ext = IXGBE_READ_REG(hw, IXGBE_GCR_EXT);
252         gcr_ext &= ~IXGBE_GCR_EXT_VT_MODE_MASK;
253
254         gpie = IXGBE_READ_REG(hw, IXGBE_GPIE);
255         gpie &= ~IXGBE_GPIE_VTMODE_MASK;
256         gpie |= IXGBE_GPIE_MSIX_MODE | IXGBE_GPIE_PBA_SUPPORT;
257
258         switch (RTE_ETH_DEV_SRIOV(eth_dev).active) {
259         case ETH_64_POOLS:
260                 gcr_ext |= IXGBE_GCR_EXT_VT_MODE_64;
261                 gpie |= IXGBE_GPIE_VTMODE_64;
262                 break;
263         case ETH_32_POOLS:
264                 gcr_ext |= IXGBE_GCR_EXT_VT_MODE_32;
265                 gpie |= IXGBE_GPIE_VTMODE_32;
266                 break;
267         case ETH_16_POOLS:
268                 gcr_ext |= IXGBE_GCR_EXT_VT_MODE_16;
269                 gpie |= IXGBE_GPIE_VTMODE_16;
270                 break;
271         }
272
273         IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext);
274         IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
275
276         /*
277          * enable vlan filtering and allow all vlan tags through
278          */
279         vlanctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
280         vlanctrl |= IXGBE_VLNCTRL_VFE; /* enable vlan filters */
281         IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlanctrl);
282
283         /* VFTA - enable all vlan filters */
284         for (i = 0; i < IXGBE_MAX_VFTA; i++)
285                 IXGBE_WRITE_REG(hw, IXGBE_VFTA(i), 0xFFFFFFFF);
286
287         /* Enable MAC Anti-Spoofing */
288         hw->mac.ops.set_mac_anti_spoofing(hw, FALSE, vf_num);
289
290         /* set flow control threshold to max to avoid tx switch hang */
291         for (i = 0; i < IXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
292                 IXGBE_WRITE_REG(hw, IXGBE_FCRTL_82599(i), 0);
293                 fcrth = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(i)) - 32;
294                 IXGBE_WRITE_REG(hw, IXGBE_FCRTH_82599(i), fcrth);
295         }
296
297         ixgbe_add_tx_flow_control_drop_filter(eth_dev);
298
299         return 0;
300 }
301
302 static void
303 set_rx_mode(struct rte_eth_dev *dev)
304 {
305         struct rte_eth_dev_data *dev_data = dev->data;
306         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
307         u32 fctrl, vmolr = IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE;
308         uint16_t vfn = dev_num_vf(dev);
309
310         /* Check for Promiscuous and All Multicast modes */
311         fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
312
313         /* set all bits that we expect to always be set */
314         fctrl &= ~IXGBE_FCTRL_SBP; /* disable store-bad-packets */
315         fctrl |= IXGBE_FCTRL_BAM;
316
317         /* clear the bits we are changing the status of */
318         fctrl &= ~(IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE);
319
320         if (dev_data->promiscuous) {
321                 fctrl |= (IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE);
322                 vmolr |= (IXGBE_VMOLR_ROPE | IXGBE_VMOLR_MPE);
323         } else {
324                 if (dev_data->all_multicast) {
325                         fctrl |= IXGBE_FCTRL_MPE;
326                         vmolr |= IXGBE_VMOLR_MPE;
327                 } else {
328                         vmolr |= IXGBE_VMOLR_ROMPE;
329                 }
330         }
331
332         if (hw->mac.type != ixgbe_mac_82598EB) {
333                 vmolr |= IXGBE_READ_REG(hw, IXGBE_VMOLR(vfn)) &
334                          ~(IXGBE_VMOLR_MPE | IXGBE_VMOLR_ROMPE |
335                            IXGBE_VMOLR_ROPE);
336                 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vfn), vmolr);
337         }
338
339         IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl);
340
341         ixgbe_vlan_hw_strip_config(dev);
342 }
343
344 static inline void
345 ixgbe_vf_reset_event(struct rte_eth_dev *dev, uint16_t vf)
346 {
347         struct ixgbe_hw *hw =
348                 IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
349         struct ixgbe_vf_info *vfinfo =
350                 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
351         int rar_entry = hw->mac.num_rar_entries - (vf + 1);
352         uint32_t vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
353
354         vmolr |= (IXGBE_VMOLR_ROPE | IXGBE_VMOLR_ROMPE |
355                         IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE);
356         IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
357
358         IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0);
359
360         /* reset multicast table array for vf */
361         vfinfo[vf].num_vf_mc_hashes = 0;
362
363         /* reset rx mode */
364         set_rx_mode(dev);
365
366         hw->mac.ops.clear_rar(hw, rar_entry);
367 }
368
369 static inline void
370 ixgbe_vf_reset_msg(struct rte_eth_dev *dev, uint16_t vf)
371 {
372         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
373         uint32_t reg;
374         uint32_t reg_offset, vf_shift;
375         const uint8_t VFRE_SHIFT = 5;  /* VFRE 32 bits per slot */
376         const uint8_t VFRE_MASK = (uint8_t)((1U << VFRE_SHIFT) - 1);
377         uint8_t  nb_q_per_pool;
378         int i;
379
380         vf_shift = vf & VFRE_MASK;
381         reg_offset = (vf >> VFRE_SHIFT) > 0 ? 1 : 0;
382
383         /* enable transmit for vf */
384         reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset));
385         reg |= (reg | (1 << vf_shift));
386         IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg);
387
388         /* enable all queue drop for IOV */
389         nb_q_per_pool = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
390         for (i = vf * nb_q_per_pool; i < (vf + 1) * nb_q_per_pool; i++) {
391                 IXGBE_WRITE_FLUSH(hw);
392                 reg = IXGBE_QDE_ENABLE | IXGBE_QDE_WRITE;
393                 reg |= i << IXGBE_QDE_IDX_SHIFT;
394                 IXGBE_WRITE_REG(hw, IXGBE_QDE, reg);
395         }
396
397         /* enable receive for vf */
398         reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
399         reg |= (reg | (1 << vf_shift));
400         IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg);
401
402         /* Enable counting of spoofed packets in the SSVPC register */
403         reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset));
404         reg |= (1 << vf_shift);
405         IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg);
406
407         ixgbe_vf_reset_event(dev, vf);
408 }
409
410 static int
411 ixgbe_enable_vf_mc_promisc(struct rte_eth_dev *dev, uint32_t vf)
412 {
413         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
414         uint32_t vmolr;
415
416         vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
417
418         RTE_LOG(INFO, PMD, "VF %u: enabling multicast promiscuous\n", vf);
419
420         vmolr |= IXGBE_VMOLR_MPE;
421
422         IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
423
424         return 0;
425 }
426
427 static int
428 ixgbe_disable_vf_mc_promisc(struct rte_eth_dev *dev, uint32_t vf)
429 {
430         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
431         uint32_t vmolr;
432
433         vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
434
435         RTE_LOG(INFO, PMD, "VF %u: disabling multicast promiscuous\n", vf);
436
437         vmolr &= ~IXGBE_VMOLR_MPE;
438
439         IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
440
441         return 0;
442 }
443
444 static int
445 ixgbe_vf_reset(struct rte_eth_dev *dev, uint16_t vf, uint32_t *msgbuf)
446 {
447         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
448         struct ixgbe_vf_info *vfinfo =
449                 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
450         unsigned char *vf_mac = vfinfo[vf].vf_mac_addresses;
451         int rar_entry = hw->mac.num_rar_entries - (vf + 1);
452         uint8_t *new_mac = (uint8_t *)(&msgbuf[1]);
453
454         ixgbe_vf_reset_msg(dev, vf);
455
456         hw->mac.ops.set_rar(hw, rar_entry, vf_mac, vf, IXGBE_RAH_AV);
457
458         /* Disable multicast promiscuous at reset */
459         ixgbe_disable_vf_mc_promisc(dev, vf);
460
461         /* reply to reset with ack and vf mac address */
462         msgbuf[0] = IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_ACK;
463         rte_memcpy(new_mac, vf_mac, ETHER_ADDR_LEN);
464         /*
465          * Piggyback the multicast filter type so VF can compute the
466          * correct vectors
467          */
468         msgbuf[3] = hw->mac.mc_filter_type;
469         ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf);
470
471         return 0;
472 }
473
474 static int
475 ixgbe_vf_set_mac_addr(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
476 {
477         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
478         struct ixgbe_vf_info *vfinfo =
479                 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
480         int rar_entry = hw->mac.num_rar_entries - (vf + 1);
481         uint8_t *new_mac = (uint8_t *)(&msgbuf[1]);
482
483         if (is_valid_assigned_ether_addr((struct ether_addr *)new_mac)) {
484                 rte_memcpy(vfinfo[vf].vf_mac_addresses, new_mac, 6);
485                 return hw->mac.ops.set_rar(hw, rar_entry, new_mac, vf, IXGBE_RAH_AV);
486         }
487         return -1;
488 }
489
490 static int
491 ixgbe_vf_set_multicast(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
492 {
493         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
494         struct ixgbe_vf_info *vfinfo =
495                 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
496         int nb_entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >>
497                 IXGBE_VT_MSGINFO_SHIFT;
498         uint16_t *hash_list = (uint16_t *)&msgbuf[1];
499         uint32_t mta_idx;
500         uint32_t mta_shift;
501         const uint32_t IXGBE_MTA_INDEX_MASK = 0x7F;
502         const uint32_t IXGBE_MTA_BIT_SHIFT = 5;
503         const uint32_t IXGBE_MTA_BIT_MASK = (0x1 << IXGBE_MTA_BIT_SHIFT) - 1;
504         uint32_t reg_val;
505         int i;
506
507         /* Disable multicast promiscuous first */
508         ixgbe_disable_vf_mc_promisc(dev, vf);
509
510         /* only so many hash values supported */
511         nb_entries = RTE_MIN(nb_entries, IXGBE_MAX_VF_MC_ENTRIES);
512
513         /* store the mc entries  */
514         vfinfo->num_vf_mc_hashes = (uint16_t)nb_entries;
515         for (i = 0; i < nb_entries; i++) {
516                 vfinfo->vf_mc_hashes[i] = hash_list[i];
517         }
518
519         for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
520                 mta_idx = (vfinfo->vf_mc_hashes[i] >> IXGBE_MTA_BIT_SHIFT)
521                                 & IXGBE_MTA_INDEX_MASK;
522                 mta_shift = vfinfo->vf_mc_hashes[i] & IXGBE_MTA_BIT_MASK;
523                 reg_val = IXGBE_READ_REG(hw, IXGBE_MTA(mta_idx));
524                 reg_val |= (1 << mta_shift);
525                 IXGBE_WRITE_REG(hw, IXGBE_MTA(mta_idx), reg_val);
526         }
527
528         return 0;
529 }
530
531 static int
532 ixgbe_vf_set_vlan(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
533 {
534         int add, vid;
535         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
536         struct ixgbe_vf_info *vfinfo =
537                 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
538
539         add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
540                 >> IXGBE_VT_MSGINFO_SHIFT;
541         vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK);
542
543         if (add)
544                 vfinfo[vf].vlan_count++;
545         else if (vfinfo[vf].vlan_count)
546                 vfinfo[vf].vlan_count--;
547         return hw->mac.ops.set_vfta(hw, vid, vf, (bool)add, false);
548 }
549
550 static int
551 ixgbe_set_vf_lpe(struct rte_eth_dev *dev, __rte_unused uint32_t vf, uint32_t *msgbuf)
552 {
553         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
554         uint32_t new_mtu = msgbuf[1];
555         uint32_t max_frs;
556         int max_frame = new_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
557
558         /* X540 and X550 support jumbo frames in IOV mode */
559         if (hw->mac.type != ixgbe_mac_X540 &&
560                 hw->mac.type != ixgbe_mac_X550 &&
561                 hw->mac.type != ixgbe_mac_X550EM_x &&
562                 hw->mac.type != ixgbe_mac_X550EM_a)
563                 return -1;
564
565         if ((max_frame < ETHER_MIN_LEN) || (max_frame > ETHER_MAX_JUMBO_FRAME_LEN))
566                 return -1;
567
568         max_frs = (IXGBE_READ_REG(hw, IXGBE_MAXFRS) &
569                    IXGBE_MHADD_MFS_MASK) >> IXGBE_MHADD_MFS_SHIFT;
570         if (max_frs < new_mtu) {
571                 max_frs = new_mtu << IXGBE_MHADD_MFS_SHIFT;
572                 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs);
573         }
574
575         return 0;
576 }
577
578 static int
579 ixgbe_negotiate_vf_api(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
580 {
581         uint32_t api_version = msgbuf[1];
582         struct ixgbe_vf_info *vfinfo =
583                 *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private);
584
585         switch (api_version) {
586         case ixgbe_mbox_api_10:
587         case ixgbe_mbox_api_11:
588         case ixgbe_mbox_api_12:
589                 vfinfo[vf].api_version = (uint8_t)api_version;
590                 return 0;
591         default:
592                 break;
593         }
594
595         RTE_LOG(ERR, PMD, "Negotiate invalid api version %u from VF %d\n",
596                 api_version, vf);
597
598         return -1;
599 }
600
601 static int
602 ixgbe_get_vf_queues(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
603 {
604         struct ixgbe_vf_info *vfinfo =
605                 *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private);
606         uint32_t default_q = vf * RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
607         struct rte_eth_conf *eth_conf;
608         struct rte_eth_vmdq_dcb_tx_conf *vmdq_dcb_tx_conf;
609         u8 num_tcs;
610         struct ixgbe_hw *hw;
611         u32 vmvir;
612 #define IXGBE_VMVIR_VLANA_MASK          0xC0000000
613 #define IXGBE_VMVIR_VLAN_VID_MASK       0x00000FFF
614 #define IXGBE_VMVIR_VLAN_UP_MASK        0x0000E000
615 #define VLAN_PRIO_SHIFT                 13
616         u32 vlana;
617         u32 vid;
618         u32 user_priority;
619
620         /* Verify if the PF supports the mbox APIs version or not */
621         switch (vfinfo[vf].api_version) {
622         case ixgbe_mbox_api_20:
623         case ixgbe_mbox_api_11:
624         case ixgbe_mbox_api_12:
625                 break;
626         default:
627                 return -1;
628         }
629
630         /* Notify VF of Rx and Tx queue number */
631         msgbuf[IXGBE_VF_RX_QUEUES] = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
632         msgbuf[IXGBE_VF_TX_QUEUES] = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
633
634         /* Notify VF of default queue */
635         msgbuf[IXGBE_VF_DEF_QUEUE] = default_q;
636
637         /* Notify VF of number of DCB traffic classes */
638         eth_conf = &dev->data->dev_conf;
639         switch (eth_conf->txmode.mq_mode) {
640         case ETH_MQ_TX_NONE:
641         case ETH_MQ_TX_DCB:
642                 RTE_LOG(ERR, PMD, "PF must work with virtualization for VF %u"
643                         ", but its tx mode = %d\n", vf,
644                         eth_conf->txmode.mq_mode);
645                 return -1;
646
647         case ETH_MQ_TX_VMDQ_DCB:
648                 vmdq_dcb_tx_conf = &eth_conf->tx_adv_conf.vmdq_dcb_tx_conf;
649                 switch (vmdq_dcb_tx_conf->nb_queue_pools) {
650                 case ETH_16_POOLS:
651                         num_tcs = ETH_8_TCS;
652                         break;
653                 case ETH_32_POOLS:
654                         num_tcs = ETH_4_TCS;
655                         break;
656                 default:
657                         return -1;
658                 }
659                 break;
660
661         /* ETH_MQ_TX_VMDQ_ONLY,  DCB not enabled */
662         case ETH_MQ_TX_VMDQ_ONLY:
663                 hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
664                 vmvir = IXGBE_READ_REG(hw, IXGBE_VMVIR(vf));
665                 vlana = vmvir & IXGBE_VMVIR_VLANA_MASK;
666                 vid = vmvir & IXGBE_VMVIR_VLAN_VID_MASK;
667                 user_priority =
668                         (vmvir & IXGBE_VMVIR_VLAN_UP_MASK) >> VLAN_PRIO_SHIFT;
669                 if ((vlana == IXGBE_VMVIR_VLANA_DEFAULT) &&
670                         ((vid !=  0) || (user_priority != 0)))
671                         num_tcs = 1;
672                 else
673                         num_tcs = 0;
674                 break;
675
676         default:
677                 RTE_LOG(ERR, PMD, "PF work with invalid mode = %d\n",
678                         eth_conf->txmode.mq_mode);
679                 return -1;
680         }
681         msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs;
682
683         return 0;
684 }
685
686 static int
687 ixgbe_set_vf_mc_promisc(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
688 {
689         struct ixgbe_vf_info *vfinfo =
690                 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
691         bool enable = !!msgbuf[1];      /* msgbuf contains the flag to enable */
692
693         switch (vfinfo[vf].api_version) {
694         case ixgbe_mbox_api_12:
695                 break;
696         default:
697                 return -1;
698         }
699
700         if (enable)
701                 return ixgbe_enable_vf_mc_promisc(dev, vf);
702         else
703                 return ixgbe_disable_vf_mc_promisc(dev, vf);
704 }
705
706 static int
707 ixgbe_rcv_msg_from_vf(struct rte_eth_dev *dev, uint16_t vf)
708 {
709         uint16_t mbx_size = IXGBE_VFMAILBOX_SIZE;
710         uint16_t msg_size = IXGBE_VF_MSG_SIZE_DEFAULT;
711         uint32_t msgbuf[IXGBE_VFMAILBOX_SIZE];
712         int32_t retval;
713         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
714         struct ixgbe_vf_info *vfinfo =
715                 *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private);
716         struct rte_pmd_ixgbe_mb_event_param ret_param;
717
718         retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
719         if (retval) {
720                 PMD_DRV_LOG(ERR, "Error mbx recv msg from VF %d", vf);
721                 return retval;
722         }
723
724         /* do nothing with the message already been processed */
725         if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK))
726                 return retval;
727
728         /* flush the ack before we write any messages back */
729         IXGBE_WRITE_FLUSH(hw);
730
731         /**
732          * initialise structure to send to user application
733          * will return response from user in retval field
734          */
735         ret_param.retval = RTE_PMD_IXGBE_MB_EVENT_PROCEED;
736         ret_param.vfid = vf;
737         ret_param.msg_type = msgbuf[0] & 0xFFFF;
738         ret_param.msg = (void *)msgbuf;
739
740         /* perform VF reset */
741         if (msgbuf[0] == IXGBE_VF_RESET) {
742                 int ret = ixgbe_vf_reset(dev, vf, msgbuf);
743
744                 vfinfo[vf].clear_to_send = true;
745
746                 /* notify application about VF reset */
747                 _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_VF_MBOX,
748                                               &ret_param);
749                 return ret;
750         }
751
752         /**
753          * ask user application if we allowed to perform those functions
754          * if we get ret_param.retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED
755          * then business as usual,
756          * if 0, do nothing and send ACK to VF
757          * if ret_param.retval > 1, do nothing and send NAK to VF
758          */
759         _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_VF_MBOX,
760                                       &ret_param);
761
762         retval = ret_param.retval;
763
764         /* check & process VF to PF mailbox message */
765         switch ((msgbuf[0] & 0xFFFF)) {
766         case IXGBE_VF_SET_MAC_ADDR:
767                 if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
768                         retval = ixgbe_vf_set_mac_addr(dev, vf, msgbuf);
769                 break;
770         case IXGBE_VF_SET_MULTICAST:
771                 if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
772                         retval = ixgbe_vf_set_multicast(dev, vf, msgbuf);
773                 break;
774         case IXGBE_VF_SET_LPE:
775                 if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
776                         retval = ixgbe_set_vf_lpe(dev, vf, msgbuf);
777                 break;
778         case IXGBE_VF_SET_VLAN:
779                 if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
780                         retval = ixgbe_vf_set_vlan(dev, vf, msgbuf);
781                 break;
782         case IXGBE_VF_API_NEGOTIATE:
783                 retval = ixgbe_negotiate_vf_api(dev, vf, msgbuf);
784                 break;
785         case IXGBE_VF_GET_QUEUES:
786                 retval = ixgbe_get_vf_queues(dev, vf, msgbuf);
787                 msg_size = IXGBE_VF_GET_QUEUE_MSG_SIZE;
788                 break;
789         case IXGBE_VF_UPDATE_XCAST_MODE:
790                 if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
791                         retval = ixgbe_set_vf_mc_promisc(dev, vf, msgbuf);
792                 break;
793         default:
794                 PMD_DRV_LOG(DEBUG, "Unhandled Msg %8.8x", (unsigned)msgbuf[0]);
795                 retval = IXGBE_ERR_MBX;
796                 break;
797         }
798
799         /* response the VF according to the message process result */
800         if (retval)
801                 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
802         else
803                 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
804
805         msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS;
806
807         ixgbe_write_mbx(hw, msgbuf, msg_size, vf);
808
809         return retval;
810 }
811
812 static inline void
813 ixgbe_rcv_ack_from_vf(struct rte_eth_dev *dev, uint16_t vf)
814 {
815         uint32_t msg = IXGBE_VT_MSGTYPE_NACK;
816         struct ixgbe_hw *hw =
817                 IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
818         struct ixgbe_vf_info *vfinfo =
819                 *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private);
820
821         if (!vfinfo[vf].clear_to_send)
822                 ixgbe_write_mbx(hw, &msg, 1, vf);
823 }
824
825 void ixgbe_pf_mbx_process(struct rte_eth_dev *eth_dev)
826 {
827         uint16_t vf;
828         struct ixgbe_hw *hw =
829                 IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
830
831         for (vf = 0; vf < dev_num_vf(eth_dev); vf++) {
832                 /* check & process vf function level reset */
833                 if (!ixgbe_check_for_rst(hw, vf))
834                         ixgbe_vf_reset_event(eth_dev, vf);
835
836                 /* check & process vf mailbox messages */
837                 if (!ixgbe_check_for_msg(hw, vf))
838                         ixgbe_rcv_msg_from_vf(eth_dev, vf);
839
840                 /* check & process acks from vf */
841                 if (!ixgbe_check_for_ack(hw, vf))
842                         ixgbe_rcv_ack_from_vf(eth_dev, vf);
843         }
844 }